I revert back to IOMMU interrupt configuration and deleted SMBus interrupt. I suggested myself by Linux kernel which seems to configure those devices such way.

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3 comments:

• File src/mainboard/pcengines/apu2/mainboard.c:

  • Patch Set #2, Line 95:

    	{GFX_DEVFN,	{PIRQ_A, PIRQ_NC, PIRQ_NC, PIRQ_NC}},			/* VGA:		01.0 */
    	{ACTL_DEVFN,{PIRQ_NC, PIRQ_B, PIRQ_NC, PIRQ_NC}},			/* Audio:	01.1 */
    

    We do not have the VGA and Audio. […]

    I deleted both entries

  • Patch Set #2, Line 101: {NB_PCIE_PORT5_DEVFN, {PIRQ_A, PIRQ_B, PIRQ_C, PIRQ_D}}, /* mPCIe slot 1: 02.5 */

    This whitespace should be removed

    Done

• File src/mainboard/pcengines/apu2/mptable.c:

  • Patch Set #2, Line 99: PCI_INT(0x0, 0x2, 0x0, 0x10); // mPCI

    What is the reason of change here?

    In the other comment, you mentioned that this function actually configure PCI device line, not function interrupt. Am I correct if there are 4 interrupt lines only, so there is no point in trying to configure line 0x4?

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